org.apache.poi.hssf.record.formula.eval
Interface OperationEval
- All Known Implementing Classes:
- AddEval, ConcatEval, DivideEval, EqualEval, FunctionEval, FuncVarEval, GreaterEqualEval, GreaterThanEval, LessEqualEval, LessThanEval, MultiplyEval, NotEqualEval, PercentEval, PowerEval, RangeEval, RelationalOperationEval, SubtractEval, UnaryMinusEval, UnaryPlusEval
public interface OperationEval
Common interface for implementations of Excel formula operations.
- Author:
- Amol S. Deshmukh < amolweb at ya hoo dot com >
evaluate
Eval evaluate(Eval[] args,
int srcRowIndex,
short srcColumnIndex)
- Parameters:
args
- the evaluated operation arguments. Elements of this array typically implement
ValueEval
. Empty values are represented with BlankEval
or MissingArgEval
, never null
.srcRowIndex
- row index of the cell containing the formula under evaluationsrcColumnIndex
- column index of the cell containing the formula under evaluation
- Returns:
- The evaluated result, possibly an
ErrorEval
, never null
.
getNumberOfOperands
int getNumberOfOperands()
Copyright 2009 The Apache Software Foundation or
its licensors, as applicable.